Must be turned on manually on every phone boot. Also is turned off when you force close Google Play Services in battery settings to save battery. I don't understand why the two have to be slaved together. For these reasons I am going back to Twilight.
Nothing special at all. Just turns the brightness down. Twilight is much better.
Not 5 but 5+ star
Does what it needs to do.
I got this when this app was free
woW!finally i got this wonderful app.thanks for creating this.
Correction related to function description of application.
Reduce blue light to fall asleep easily. Best blue light filter app for eye care